Bed-spring tightener.



0. A. WARWICK & 0. O. CAMPBELL.

BED SPRING TIGH'IENER. APPLIOATION 111L119 NOV. 29, 1913.

Patented June 30, 1914.

' WITNESSES Allomey COLUMBIA I'LANounAPn cu.. \vAsmmzToN, D. c.

STATEFiS FATEN'I OFFICE.

OSCAR ALBERT WARWICK AND OSGAROTIS CAMPBELL, 0F BOWLING GREEN, MISSOURI.

BED-SPRING TIGHTENER.

Specification of Letters Patent.

Patented June 30, 1914.

Application filed November 29, 1913. Serial No. 803,865.

To all whom it may concern Be it known that we, OsoAR ALBERT NAR- wIou and OSCAR OTIS CAMPBELL, citizens of the United States, residing at Bowling Green, in the county of Pike and State of Missouri, have invented new and useful Im provements 1n Bed-Spring Tightencrs, of which the following is a specification.

This invention relates to bed spring tighteners, and the objects of the same are; first, to provide a device of the above character which affords facilities for obtaining the proper adjustment of the springs, one which can be readily attached or detached to or from an ordinary bed, and one which consists of but a few parts thereby reducing the manufacture of a device of this nature to a minimum.

With the above and other objects in view, our invention relates to such details of construction and. in the arrangement and combination of the several parts as will be hereinafter fully described and specifically pointed out in the appended claims.

In describing our invention in detail, ref

erence will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which,

Figure 1 is a plan view of our invention, Fig. 2 is a sectional View of the same taken on line 2-2, Fig. 1. Fig. 3 is a perspective view of a portion of our invention. Fig. l is a cross sectional view taken on line 4--4, Fig. l. is a side elevation of the wrench used in connection with our invention.

In the accompanying drawings which illustrate the preferred form of our invention, the numeral 1 designates a plurality of supporting blocks which are made substantially U shape in cross section and have said screws 2, operative therein, for the purpose that will hereinafter appear. Each of the supporting blocks are provided with books 3, which hooks are adapted to engage the rollers 4, as shown, for the purpose of holding them securely in place.

For the purpose of securing the spring 5 Fig. 5 is a detailed view, and Fig. 6-

to the rollers, the substantial concave strips 6 are provided, which have connection with the rollers through the medium of the rods 7. The ends of the rollers are provided with openings 8, whereby they may receive the end of the tool 9, and thereby be rotated. Ratchet wheels 10 are provided upon each of said rollers and are engaged by the pawls 12, which are pivotally mounted upon the supporting blocks 1.

It will be readily obvious that when the rollers are turned so as to tighten the springs that their reverse movement will be provided through the iustrumentality of the mechanism set. forth above.

We desire to lay the greatest of stress upon the simplicity of our invention and it is thought that the advantages and novel features of the same will be readily appreciated from the foregoing disclosure.

e desire it to be understood that we may make slight changes in the construction and inthe arraugi'rmcnts and combination of the several parts, provided such changes fall within the scope of the sub-joined claims.

Having thus fully described our invention, which we claim as new and desire to secure by Letters Patent is:-

1. In a device of the character described a plurality of supporting blocks having hooks thereon, rollers in engagement with said hooks and connecting pairs of supporting blocks and springs in. engagement with said rollers for the purpose described.

2. In a device of the character described, a plurality of supporting blocks substantially U shaped in cross section and having set screws operative therethrough, hooks positioned upon each of said supporting blocks, rollers having engagement with said hooks and spring having its ends connected to said rollers, mechanism upon said rollers and said supporting blocks whereby said spring may be tightened or loosened and means for operating said rollers for the purpose described.

3. In a device of the character described, a plurality of supporting blocks being substantially U shaped in cross section and havthey may be rotated so as to tighten or loosen said spring for the purpose described.

OSCAR ALBERT vVARl VICK. OSCAR OTIS CAMPBELL. l Vitnesses W. P. MOORE, H. H. BROWN.

ing hooks positioned thereon, rollers in engagement with said hooks, elongated concave strips in engagement With said rollers adapted to grip the ends of the spring gear, wheels carried upon said rollers, pawls pivotally mounted upon said supporting blocks and means formed in said rollers whereby Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. E. 

